Hi Kyrylo, > As an aside, the master branch fails to build for aarch64-none-elf with: > ar --plugin /usr/lib/gcc/x86_64-linux-gnu/7/liblto_plugin.so cru libz.a libz_a- [...] > ar: no operation specified Is this repeatable ? I tried this morning and the build went OK. Also isn't the "cru" in the command line above a valid operation ? Cheers Nick